Printing System, Control Method, and Computer-Readable Storage Medium

1. A printing system, comprising: a stacking control unit configured to control to stack a sheet printed by executing a job on a stacking unit provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; and a control unit configured to enable the cover to be opened in a case where a predetermined instruction is input by a user; via an operation unit which is provided with the stacker, wherein the stacking control unit controls to output, in a case where the predetermined instruction is input while the job is executed, the sheet printed by executing the job to an output destination different from the stacking unit.

2. The printing system according to claim 1 , wherein if the predetermined instruction is input in a case where a print waiting job in which the stacking unit is set as the output destination exists in a storage unit, the stacking control unit changes the output destination of the sheet to be output by executing the print waiting job to the output destination different from the stacking unit.

3. The printing system according to claim 1 , wherein the stacking unit includes a detachable carriage, wherein the carriage can be withdrawn from the stacker under control of the control unit in a state that the cover is left open, and wherein, in a case where the predetermined instruction is input while the job is executed, and the job controlled by the stacking control unit to output the sheet to the output destination different from the stacking unit is being executed, if the carriage withdrawn from the stacker is set into the stacker, then the stacking control unit controls to stack the sheet printed by executing the job controlled to output the sheet to the output destination on the stacking unit.

4. The printing system according to claim 1 , further comprising: a display control unit configured to control to display a screen for selecting an output destination different from the stacking unit on a display unit if the predetermined instruction is input while the job is executed, wherein, in a case where the output destination different from the stacking unit is selected by a user, the stacking control unit controls to stack the sheet printed by executing the job, to the output destination selected via the screen displayed on the display unit under control of the display control unit.

5. The printing system according to claim 4 , wherein the stack control unit suspends printing for the job until the output destination different from the stacking unit is selected via the screen displayed on the display unit under control of the display control unit.

6. The printing system according to claim 1 , wherein the output destination different from the stacking unit is an escape tray provided outside the stacker.

7. A printing system comprising: a stacking control unit configured to control to stack a sheet printed by executing a job on a stacking unit of a plurality of stacking units provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; and a control unit configured to enable the cover to be opened in a case where a predetermined instruction is input by a user, wherein the stacking control unit controls to stack, in a case where the predetermined instruction is input while the job is executed, the sheet printed by executing the job, to another stacking unit of the plurality of stacking units provided inside the stacker.

8. A printing system, comprising: a stacking control unit configured to control to stack a sheet printed by executing a job on a stacking unit provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; and a control unit configured to enable the cover to be opened in a case where a predetermined instruction is input by a user via an operation unit which is provided with an apparatus different from the stacker, wherein the stacking control unit controls to output, in a case where the predetermined instruction is input while the job is executed, the sheet printed by executing the job to an output destination different from the stacking unit.

9. A method for controlling a printing system, the method comprising: controlling to stack a sheet printed by executing a job on a stacking unit provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; enabling the cover to be opened in a case where a predetermined instruction is input by a user via an operation unit which is provided with the stacker; and controlling to output, in a case where the predetermined instruction is input while the job is executed, the sheet printed by executing the job to an output destination different from the stacking unit.

10. The method according to claim 9 , further comprising: changing the output destination of the sheet to be output by executing the print waiting job to the output destination different from the stacking unit, if the predetermined instruction is input in a case where a print waiting job in which the stacking unit is set as the output destination, exists in a storage unit.

11. The method according to claim 9 , wherein the stacking unit includes a detachable carriage, and wherein the carriage can be withdrawn from the stacker in a state that the cover is left open, the method further comprising: in a case where the predetermined instruction is input while the job is executed, and the job controlled to output the sheet to the output destination different from the stacking unit is being executed, if the carriage withdrawn from the stacker is set into the stacker, controlling to stack the sheet printed by executing the job controlled to output the sheet to the output destination on the stacking unit.

12. The method according to claim 9 , further comprising: controlling to display a screen for selecting an output destination different from the stacking unit, on a display unit if the predetermined instruction is input in a case where the job is executed; and in a case where the output destination different from the stacking unit is selected by a user, controlling to stack the sheet printed by executing the job, to the output destination selected via the screen displayed on the display unit.

13. The method according to claim 12 , wherein printing of the output job is suspended until the output destination different from the stacking unit is selected via the screen displayed on the display unit.

14. The method according to claim 9 , wherein the output destination different from the stacking unit is an escape tray provided outside the stacker.

15. A method for controlling a printing system, the method comprising: controlling to stack a sheet printed by executing a job on a stacking unit of a plurality of stacking units provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; enabling the cover to be opened in a case where a predetermined instruction is input by a user; and in a case where the predetermined instruction is input while the job is executed, controlling to stack the sheet printed by executing the job, to another stacking unit of the plurality of stacking units provided inside the stacker.

16. A method for controlling a printing system, the method comprising: controlling to stack a sheet printed by executing a job on a stacking unit provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; enabling the cover to be opened in a case where a predetermined instruction is input by a user via an operation unit which is provided with an apparatus different from the stacker; and controlling to output, in a case the predetermined instruction is input while the job is executed, the sheet printed by executing the job to an output destination different from the stacking unit.

17. A non-transitory computer-readable storage medium storing a computer-executable program for controlling a printing system, the computer-executable program comprising: a code to control to stack a sheet printed by executing a job on a stacking unit provided inside a stacker, wherein the stacker includes a cover that can be opened and closed; a code to enable the cover to be opened in a case where a predetermined instruction is input by a user via an operation unit which is provided with the stacker; and in a case where the predetermined instruction is input while the job is executed, controlling to output the sheet printed by executing the job to an output destination different from the stacking unit.